PIC12F639 Microchip Technology, PIC12F639 Datasheet - Page 46
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC12F639
Manufacturer Part Number
PIC12F639
Description
(PIC12F635 / PIC12F636 / PIC12F639) 8/14-PIN FLASH-BASED / 8-BIT CMOS MICROCONTROLLERS WITH NANOWATT TECHNOLOGY
Manufacturer
Microchip Technology
Datasheet
1.PIC12F639.pdf
(196 pages)
- Current page: 46 of 196
- Download datasheet (4Mb)
PIC12F635/PIC16F636/639
4.2.4
Each PORTA pin is multiplexed with other functions. The
pins and their combined functions are briefly described
here. For specific information about individual functions,
such as the comparator, refer to the appropriate section
in this data sheet.
FIGURE 4-1:
DS41232B-page 44
Note 1:
PIN DESCRIPTIONS AND
DIAGRAMS
Data Bus
WPUDA
WPUDA
PORTA
PORTA
TRISA
TRISA
IOCA
IOCA
WDA
WDA
Interrupt-on-
WR
WR
WR
WR
WR
RD
RD
RD
RD
RD
Change
Comparator mode determines Analog Input mode.
BLOCK DIAGRAM OF RA0
D
D
D
D
D
CK
CK
CK
CK
CK
Q
Q
Q
Q
Q
Q
Q
Q
Q
Q
Input Mode
Analog
RAPU
(1)
Preliminary
RD PORTA
Input Mode
Analog
Q
Q
4.2.4.1
Figure 4-2 shows the diagram for this pin. The RA0 pin
is configurable to function as one of the following:
• a general purpose I/O
• an analog input to the comparator
• In-Circuit Serial Programming
• an analog input for the Ultra Low-Power Wake-up
(1)
EN
EN
D
D
0
1
V
Q3
Weak
Weak
DD
RA0/C1IN+/ICSPDAT/ULPWU
–
+
ULPWUE
V
SS
I
ULP
© 2005 Microchip Technology Inc.
V
T
™
data
V
V
DD
SS
I/O pin
Related parts for PIC12F639
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![PIC12F1840-I/P](/photos/16/3/160349/pdip8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 PDI
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840-I/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12F1840-I/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 DFN
Manufacturer:
Microchip Technology
![PIC12F1840-I/SN](/photos/16/3/160347/soic8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 SOI
Manufacturer:
Microchip Technology
![PIC12LF1840-E/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840-E/P](/photos/16/3/160349/pdip8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840-E/SN](/photos/16/3/160347/soic8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840-I/P](/photos/16/3/160349/pdip8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
![PIC12LF1840-I/SN](/photos/16/3/160347/soic8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
![PIC12LF1840T-I/MF](/photos/16/0/160077/dfn8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1840T-I/SN](/photos/16/3/160347/soic8_tmb.jpg)
Part Number:
Description:
7 KB Flash, 256 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Nano
Manufacturer:
Microchip Technology
Datasheet:
![PIC12](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
8-Pin/ 8-Bit CMOS Microcontroller with EEPROM Data Memory
Manufacturer:
Microchip Technology
![PIC12F1822-I/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
Manufacturer:
Microchip Technology
Datasheet:
![PIC12LF1822-I/MF](/images/manufacturer_photos/0/4/439/microchip_technology_tmb.jpg)
Part Number:
Description:
IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
Manufacturer:
Microchip Technology
Datasheet:
![PIC-0903](/images/no-image3.png)
Part Number:
Description:
Photo IC(photodiode with signal processing)
Manufacturer:
KODENSHI KOREA CORP
Datasheet: